Composition of matter and process of making the same.



JACOB s. RoBEsoN,

PROCESS COMPANY, OF NEw JERSEY.

OF CAMDEN, NEW JERSEY, ASSIGNOR TO ROBESON CAMDEN, ,NEW' JERSEY, A CORPORATION or COMPOSITION OF MATTER AND PROCESS OF MAKING THE SAME- Specification of Letters Patent.

Patented April 23, 1907.

Application filed June 8,1906. Serial No. 320,888.

To all whom it may concern:

Be it known that I, JACOB S. ROBESON, a

3 citizen of the United States, and a resident of Camden, Camden county, New Jersey, have invented an Improved Composition of Mat- .ter and Process of Making the Same, of which the following is a specification.

My invention relates to compositions of matter having adhesive properties, and contion of matter.

sists of an improved com mass of sulfite liquor an as the material particularly from coni erous woods is sometimes called. By the term wood tar, (or pitch) is meant the heavy liquid byroduct from the condensed products of the estructive distillation of woody tissues in the manufacture of pyroligneous acid and methyl alcohol &c. I

My invention comprises further the method or process of making this improved composi- In the manufacture of cellulose or pa er pulp under what is known as the sul te process, which consists in boiling Wood and other fibres under pressure in a solution containing sulfurous acid and a base, such as lime or magnesia, a vast quantity of'awatery mixture known as waste sulfite liquor is roduced that hitherto has had little value, esides'being highly 0b 'ectionable in a number of ways and. very iffioult of disposal.

Incarrying the method or process of my present invention into eflect, I em loy a concentrated or evaporated solution o the same; preferring to use a neutral, undecom osed and concentrated mass of this waste made in accordance with a method I have developed for utilizing such material.- In my patent, N o. 833,634,,dated October 16, 1906,

have set forth a process of treating this raw waste liquor, by renderin neutral with the aid of mill: of lime or other suitable alkaline material, and then quickly concentrating such neutralized body in 'vacuo, without decomposition, to a desirable it substantially density.

In thepreferred method or recess of makmg my improved compoun I propose to .use this substantially neutral, undecomposed and concentrated mass of sulfite liquor made forth, and to -1n accordance with the process above set aquant-ity of this liquor at a ound comprising a Wood tar, or itch,

combination of the in a relatively thin quor tissue, and the condensed li density of about 30 B., I add the same quantity by volume of Wood tar, ofsubstantially the same density.

In practice I have found that the emulsion formed by this combination of theneutral and concentrated waste sulfite liquor, and the by-product tar, roduces a composition of matter having a hesive properties of a high degree, and possesses the further characteristic of being non-hygroscopic; rendering it highly valuable for use as a binder in the briquetting of all forms of in0rganic.mineral matter, notably the ores of the various metals, particularlly iron ore, and all forms of carbonaceous fue I may add the wood tar at the same density as the concentrated sulfite liquor, which compound thus formed is ready for practical use, or may, if desired for any urpose, be subsequently reduced in density i br practical use by the addition ingredients may emade condition in which the material may, under some circumstances, be employed? For many purposes the density may be reduced by heat and this will" ermit a better admixture with the materia to be bri netted.

e combined mixture is preferably sub- 4 jected to the action of heat to insure the inti-. mate and com lete admixture of the in edients thereof, a though substantially sat1sfactory results can be secured by mixing the ingredients at ordinary temperatures.

claim:

1. An adhesive-comprisin lose elements of wood in so li uid byroduct from the tiIlation o Woody tissue.

2. An adhesive comprising a sulfite solution of the non-celluloseelements of wood uid from the destructive distillation of woo y tissue.

3. An adhesive comprising sulfite liquor and the liquid by-product from the destructive distillation of woody tissue.

' 4. An adhesive comprising concentrated sulfite liquor and the condensed liquid from the destructive distillation of Woody tissue.

5. An adhesive comprising a neutral, undecomposed and concentrated mass of sulfite the non-celluution, and the destructive discommonly known as wood decomposed and concentrated mass ssnssi roduct resulting "'13. The process herein described of'mak-' lation of woody ing an adhesive, said process consisting in concentrating sulfite liquor, adding to a quantity of the same a certain quantity of wood tar, and then incorporating said materials by the agency of heat? 14. The process herein described of making an adhesive, said process consisting in concentrating sulfite liquor, and adding to a certain quantity of the same an equal quantity of wood tar.

15. The process ing an adhesive, said process consisting in concentrating sulfite li uor, adding thereto a uantity of the liquid y-product from the estructive distillation of woody tissue, and incorporating said products in a homogene- Bous body by the agency of heat.

16. The process herein described of making an adhesive, said process consisting in concentrating sulfite liquor, adding thereto a quantity of wood tar, and incorporating said products in a homogeneous body by the agency of heat. a

In testimony whereof, I have signed my liquor, and the liquid byfrom the destructlve disti tissue. 1

'6. q A liquid adhesive com rising a mass of chemically unaltered sulfite iquor andwood tar. v

.7."An adhesive comprising concentrated sulfite liquor and wood tar, in equal proportions. 7

8. An adhesive comprising a neutral, undecomposed and concentrated mass of sulfite liquor, and wood tar.

9. An adhesive comprising a neutral, un-

liquor, the liquid byroduet resulting from the destructive distil ation of woody tissue, and an aqueous thinning agent.

,7 10. A liquid adhesive comprising a mass of neutral, unde'composed and concentrated sulfite liquor, and wood tar. I

11. The process herein described of making an adhesive, said process consisting in concentrating sulfite liquor, and then adding thereto a quantity of the liquid by-product from the destructive distillation of woody tissue. 7 name to this specification, in the presence of 12. The process heie-in described of maktwo'subscribing witnesses. in an adhesive, sai rocess consisting in, co iicentrating sulfite liguor, and adding to a JACOB ROBESON' certain quantity of the same an equal quan- I Witnesses: I

\ MURRAY C. BOYER, l

tity of the li uid by-Q roduct from the de- Jos. H. KL IN. I

structive disti ation o woody tissue.

herein described of mak- 

